This is a exciting and immersive composition based on recordings by Chris Watson, who is arguably Britain's leading wildlife sound recordist.

Water Song captures the rhythmic beat of individual drops seeping through cracks and dripping off stalactites in the glow worms caves of Waitomo in New Zealand, the chattering gurgle of a mountain stream, to the underwater snap, crackle and pop of Pistol Shrimps, the percussive patter of raindrops tumbling down a drainpipe, the immersive surge of waves across a beach on the Galapagos islands, the powerful creaks and groans inside Vatnajokull, a vast glacier in Icelandic and the almost deafening roar of a waterfall.

Alongside this unique composition, Chris explains what first attracted him to the sounds of water, and how this fascination has developed. He describes some of his recording techniques, the astonishing diversity and quality of sounds he has captured and the emotional experience of tuning in to this watery world; from immersive and tranquil rhythms to deafening and terrifying sounds. It's "the music of another medium", he says.

Over the years, Chris has become increasingly fascinated by the quality, depth and diversity of sounds produced by water - from single drops, to rivulets, brooks and streams, ice sheets and glaciers to oceans and waterfalls.

Chris has worked as a freelance sound recordist with the BBC Natural History Unit on many TV and Radio projects , including Life in the Undergrowth and The Life of Birds on TV, and SOUNDSCAPES and The Oak Tree most recently on BBC Radio 4, and he has produced several CD collections of wildlife sounds and atmospheres.